ASTM B521-98(2004)

Standard Specification for Tantalum and Tantalum Alloy Seamless and Welded Tubes

ASTM International, 05/01/2004

Publisher: ASTM

File Format: PDF

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Published:01/05/2004

Pages:3

File Size:1 file , 31 KB

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1.1 This specification covers tantalum and tantalum alloy seamless and welded tubes of the following grades:

1.1.1 UNS Grade R05400 Unalloyed tantalum, powder-metallurgy consolidation,

1.1.2 UNS Grade R05200 Unalloyed tantalum, vacuum melted,

1.1.3 UNS Grade R05252 Tantalum + 2.5 % tungsten alloy, vacuum melted.

1.1.4 UNS Grade R05255 Tantalum + 10 % tungsten alloy, vacuum melted.

1.1.5 UNS Grade R05240 Tantalum alloy, 60 % tantalum, 40 % columbium, electron-beam furnace or vacuum arc melt, or both.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

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